build: update to latest version of btcwallet w/ taproot estimation fix

Fixes https://github.com/lightningnetwork/lnd/issues/6873

lntest/itest/lnd_recovery_test.go

@@ -338,11 +338,11 @@ func testOnchainFundRecovery(net *lntest.NetworkHarness, t *harnessTest) {
 	}
 	restoreCheckBalance(finalBalance, 9, 20, promptChangeAddr)
 
-	// We should expect a static fee of 50100 satoshis for spending 9 inputs
-	// (3 P2WPKH, 3 NP2WPKH, 3 P2TR) to two P2WPKH outputs. Carol should
-	// therefore only have one UTXO present (the change output) of
+	// We should expect a static fee of 36400 satoshis for spending 9
+	// inputs (3 P2WPKH, 3 NP2WPKH, 3 P2TR) to two P2WPKH outputs. Carol
+	// should therefore only have one UTXO present (the change output) of
 	// 9 - 8 - fee BTC.
-	const fee = 50100
+	const fee = 36400
 	restoreCheckBalance(finalBalance-minerAmt-fee, 1, 21, nil)
 
 	// Last of all, make sure we can also restore a node from the extended

lntest/itest/lnd_wallet_import_test.go

@@ -297,14 +297,14 @@ func psbtSendFromImportedAccount(t *harnessTest, srcNode, destNode,
 
 	case walletrpc.AddressType_TAPROOT_PUBKEY:
 		if account != defaultImportedAccount {
-			expTxFee = 190
+			expTxFee = 143
 			expChangeScriptType = txscript.WitnessV1TaprootTy
 			break
 		}
 
 		// Spends from the default imported account fall back to a P2WKH
 		// change. We'll want to change that, but in a separate PR.
-		expTxFee = 221
+		expTxFee = 131
 		expChangeScriptType = txscript.WitnessV0PubKeyHashTy
 
 	default:
@@ -464,14 +464,14 @@ func fundChanAndCloseFromImportedAccount(t *harnessTest, srcNode, destNode,
 
 	case walletrpc.AddressType_TAPROOT_PUBKEY:
 		if account != defaultImportedAccount {
-			expChanTxFee = 202
+			expChanTxFee = 155
 			expChangeScriptType = txscript.WitnessV1TaprootTy
 			break
 		}
 
 		// Spends from the default imported account fall back to a P2WKH
 		// change. We'll want to change that, but in a separate PR.
-		expChanTxFee = 233
+		expChanTxFee = 143
 		expChangeScriptType = txscript.WitnessV0PubKeyHashTy
 
 	default: